@agaiz: To make this work with the original Retrode i need some more information on it. Connect your Retrode, open System Information.app (formerly known as System Profiler, found in /Applications/Utilities/), then select USB from the Hardware section on the left and locate your Retrode in the upper view. Now copy the text form the lower view and post it here or via pm.
Also, just to make sure I have enough info to work on, put the Retrode into DFU mode and do the same thing again. Note that this time the Retrode will probably show up as "Application Specific Device".
Here's a link to a screenshot of "System Information" to help you with your task http://cl.ly/image/1X0V1o1R0U2D
EDIT: using link instead of embedded image